Ullrich Sierau

Mayor of the City of Dortmund


  • Year of birth: 1956
  • Place of birth: Halle/Saale
  • Nationality: German


  • Obtained a degree in spatial planning in Dortmund and planning in Oxford


1983 - 1985 Internship in the field of urban development with the State of North Rhine-Westphalia
1986 - 1994 Ministry for Urban Development, Housing and Transportation, State of North Rhine-Westphalia
1994 - 1999 Director at the Institute of State and Urban Development Research, State of North Rhine-Westphalia
May 1999 - March 2005 Head of the Environment and Planning Department at the City of Dortmund
April 2005 - February 2007 Head of the Planning Department at the City of Dortmund
February 2007 - October 2009 Manager of the City of Dortmund and Head of the Planning, Urban Development and Infrastructure Department
since October 2009 Mayor of the City of Dortmund

Membership in other mandatory supervisory boards

  • Dortmunder Energie- und Wasserversorgung GmbH (Chairman)
  • Dortmunder Stadtwerke AG (Chairman)
  • Dortmunder Stadtwerke Holding GmbH (Chairman)
  • KEB Holding AG (Chairman)

Membership in comparable domestic and foreign supervisory committees of commercial enterprises

  • KSBG Kommunale Verwaltungsgesellschaft GmbH
  • Schüchtermann-Schiller’sche Kliniken Bad Rothenfelde GmbH & Co. KG
  • Sparkasse Dortmund (Chairman)

Core competences

  • Utility sector
  • Public sector
  • Managerial experience
  • Accounting and internal audit
  • Relevant knowledge in public services, change management, urban development and sustainability as well as in energy supply and the utility sector